package com.kuang.dao;

import com.kuang.pojo.Department;
import com.sun.org.apache.bcel.internal.generic.RETURN;
import jdk.nashorn.internal.ir.ReturnNode;
import org.springframework.stereotype.Repository;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
@Repository
public class DepartmentDao {
    //模拟数据库中的数据
    private static Map<Integer, Department> departments=null;

    static {
        //创建一个部门表
        departments=new HashMap<Integer, Department>();
        departments.put(101,new Department(101,"教学部"));
        departments.put(102,new Department(102,"教研部"));
        departments.put(103,new Department(103,"市场部"));
        departments.put(104,new Department(104,"学习部"));
        departments.put(105,new Department(105,"6666部"));
    }


    //获得所有部门信息
    public Collection<Department> getDepartments(){
        return departments.values();
    }

    //通过id得到部门
    public Department getDepartmentById(Integer id){
        return departments.get(id);
    }
}
